Acyl polyalkylene-polyamine biguanides



by condensing a polyalkylene-polyamine with an I Patented Get. 4, l at 2.488.989 I 1 non. POLYALKYLENE-PfiLYMIWE mcoamnns x r Ferdinand J. Gajewskl, LlndenQN. 1., assignor to General Aniline 1!; Film Corporation, New York, N. Y., a corporation of Delaware No Drawing. Application July 2,1947, 8erial No.,'l58,718 i I 1 10 Claims. (Cl. zoo-404.5)

This invention relates to novel condensation ene triamine, dicyandiamide and dimethyl sulproducts obtained by reacting an acyl polyalkylfate as reactants, is illustrated by the following ene-polyamide (which, in turn, may be produced formulas below:

aliphatic carboxylic acid) with dicyandiamide 5 and a method of producing the same. It has been found thatthese novel products are valuable tex- E .l tile auxiliary materials which are useful in :1 "'NHQHIGHINHCHICHINHI +-HI the treatment of textile fibers, particularly those II of vegetable origin, cotton, viscose, rayon, celluini ON 111 o NH NH ouHuk-N'Hcmcnmrrcmcmm -Nnt'i-mn cameo.

O I CH. CnHulL-NHCH:CH:NHCHaCH:NH NHH7-N H osor-crl, lose acetate, etc. in order to eerve'as dye-fixing The acyl polyalkylene-polyamine formed as inagents and to impart a soft handle or feel to the dicated in Equation I above, may advantageously cloth. be prepared in the manner described in U. S. Pat- These novel products may be represented by out No. 1,947,951 to Neelmeier et al., by reacting the following probable general formula: a higher fatty acid, for instance stearic acid il- 0 NE NH lusiilratcd in the equation or lauric acid, palmitic I I I I I ac oleic acid, ricinoleic acid, etc., for exam le, W with a polyalkylene-polyamine such as the di- Wherein R represents an aliphatic hydrocarethylene triamine illustrated or trlethylenebO radical (Preferably 8 containing at least 9 tetramine, dipropylene-triamine and the like, by carbon atoms and which m y contain one or more mixing either the free acid or an ester (including double bonds and may be substituted by hydroxy o glycerides) thereof with a p0lyalkylene-polygroups; that is, the grouping RC0 Stands for amine and heating, preferably to 150 to 210 C. t e y radical f a Saturated unsaturated in order to complete the reaction. Any excess of f y acid y y y acid), and base and any alcohol formed may be removed stand for y ro en r m t yl, m is an integer after completion of the reaction by distillation greater than 1 e- 3 4) and}? stands under reduced pressure. While it is preferred to the group -NH2 or employ a higher fatty acid (1. e. one which conlowe, m tains at least 10 carbon atoms) in the formation of the acyl polyalkylene-polyamines in step 1 illustrated by Equation I above (since it has been 40 found that the novel products of this invention wherein X stands for halogen or the group which are produced when such higher fatty acids -OSOa-lower alkyl. are employed have the property of imparting a As indicated above, these products may be obsoft handle or feel to textile materials treated tained by first condensing a fatty acid with a therewithi), it is possible to employ a lower fatpolyalkylene-polyamin and thereafter reacting ty acid, for instance acetic, propionic or butyric the thus-obtained acyl polyalkylene-polyamine acid, in place of such higher fatty acid. In this with dicyandiamide. The thus-obtained acyl case, the novel products of the present invenpolyalkylene-polyamine biguanide may then be tion, while they do not impart soft handle or feel used directly for the treatment of textile mateto the textile materials treated therewith, do rials. However, most of these biguanides are have thelproperty of serving as dye-fixing agents. relatively water-insoluble and in order to facili- The thus-obtained acyl polyalkylene-polytate their use, it is preferable to incorporate a amine either as such or in the form of its salt with water-solubilizing group into the molecule. These such acids as hydrochloric, sulfuric and phosproducts may advantageously be water-solubiphoric acid, is then reacted with dicyandiamide, lized by reacting them with a neutral lower alkyl as illustrated in Equation II above. This reaction inorganic acid ester, such as methyl chloride. may advantageously be carried out by heating a ethyl iodide, or dimethyl or diethyl sulfate. I mixture of the two reactants or, if desired, may In order to facilitate the present description, be carried out in the presence of an inert solvent, the preparation of the novel compounds of the for instance, an aqueous alcoholic solution, at a present invention employing stearic acid, dicthylo temperature of from say C. to C. In

most cases it is not necessary to isolate the products obtained in this reaction, since they may 1 lbe employed directly in the condition in which they are produced. The thus-obtained biguanide is a valuable textile-treating material but is, as previously indicated, insufliciently water-soluble to be applied readily without the use of emulsifying agents and the like.

In order to facilitate the use of these biguanides, it is preferable to subject them to a watersolubilizing step and it has been found that they may be readily water-solubilized by treatment with a neutral lower alkyl inorganic acid ester, for instance, dimethyl sulfate or diethyl sulfate, as indicated in Equation III above. When so treated, the acyl polyalkylene-polyamine biguanides of the present invention are sufliciently water-soluble to permit their use as textile-treating agents in an aqueous solution and when so applied'serve as dye-fixing agents on textile fabrics treated therewith and in the case of products produced from higher fatty acids impart a softhandle or feel to the treated fabric. I

The following specific examples are illustrative of preferred methods of producing the acyl polyalkylene-polyamine biguanides of this invention:

Example 1 Equal parts by weight of .stearic acid and diethylene triamine were heated at 200-210 C2. until a test of the reaction product was soluble in dilute hydrochloric acid, The excess diethylene triamine was then distilled off under vacuum.

The resulting acyl polyalkylene-polyamine was converted to the hydrochloride by additionof dilute HCl and was then refluxed with an equimolar portion of dicyandiamide in methanol for 12 hours. The resultant acyl polyalkylene-polyamine biguanide was then recovered by distilling off the methanol.

This material was then applied to cotton cloth as 0.25% to 2% aqueous solutions and dispersions, the dispersions being prepared by dispersing the acyl polyalkylene-polyamine biguanide in water, using a water-soluble polyglycol ether of octyl phenol as the dispersing agent, while for the preparation of the solutions the acyl polyalkylenepolyamine biguanide was reacted with an equimolar proportion of dimethyl sulfate by heating a mixture thereof as indicated in Equation 111 above. Cotton cloth was then padded with these dispersions and solutions to 50% to 100% p p of the solution and then dried either in the air or by baking in an oven at 120 C.

Both dyed and undyed samples of cloth wer treated as above described and in all cases the material imparted a soft feel to the cloth. It also served to fix the dye on the cloth, both in the case-of cloth that had been dyed before this treatment and also in the case of cloth which was dyed after this treatment.

' Erample 2 Equimolecuiar quantities of stearic acid and diethylene triamine are slowly heated to 180 C. The temperature is maintained'until a sample is soluble in dilute mineral or organic acid such as acetic acid. The temperature is dropped to 100 C. and a one 1) mol equivalent of dicyandiamide is added. The temperature is raised to 120-125 C. and kept there for 12-24 hours. The reaction mixture is cooled below 100 C. and an equal weight of water is added. Then at 80-90 Cja molecular equivalent of dimethyl sulfate is added and stirred until a sample is soluble in water.

4 This material was then applied to cotton cloth, as described in Example 1 and was similar in its action thereon to the material of that example.

I claim: 5 l. Acyl polyalkylene-polyamine biguanides of the general formula:

0 R-ti-Nrqcna -oHR"-NH).-cNu-NH-cNH-NH= wherein R is the residue of a fatty acid, R and R" stand for a member of the group consisting of hydrogen and methyl, :1: stands for an integer greater than 1.

2. Acyl polyalkylene-polyamine biguanides of 5 the general formula:

0 g R-lLNHwnR' cnR" NH),cNB NH-cNH NH, wherein R is the residue of a higher fatty acid, R and R" stand for a member of the group consisting of hydrogen and methyl, :1: stands for an integer greater than 1.

3. Acyl polyalkylene-polyamine biguanides of the general formula:

R-CNH(CH1CH:NH),CNHNHCNHNH; wherein R is the residue of a fatty acid, :1: stands for an integer greater than 1.

4. Acyl polyalkylene-polyamine biguanides of the general formula:

o R-tt-Nmcm-cm-NmroNn-NH-cNn-NH, wherein R is the residue of a higher fatty acid, :1: stands for an integer greater than 1.

5. An acyl polyalkylene-polyamine biguanide of the formula: r

i CnHzr-NH-CHa-CHrNH-CHa-CHg-NBF-CNH-lFH CNH-NH, 6. An acyl polyalkylene-polyamine biguanide of the formula:

wherein R'is the residue of a fatty acid, R and R" stand for a member of the group consisting 6 of hydrogen and methyl, a: stands for an integer greater than 1, and X stands for a member of the group consisting of-halogen and the group -OSO3lower alkyl.

8. Acyl polyalkylene-polyamine biguanides of the general formula:

wherein ,R is the residue of a higher fatty acid, R and R" stand for a member ofthe group consisting of hydrogen and methyl, :2: stands for an integer greater than 1, and X stands for a member of the group consisting of halogen and the group OSOPlower alkyl 9. Acyl polyalkylene-polyamine biguanides of the general formula:

wherein R is the residue of a. fatty acid, :1: stands for an integer greater than 1, and X stands for a member of the group consisting of halogen and the group -OSOz-lower alkyl.

10. Acyl polyalkylene-polyamine biguanides of the general formula:

0 lower alkyl wherein R is the residue of a. higher fatty acid,

. a: stands for an integer greater than 1, and X stands for a member of the group consisting of halogen and the group -OSO3-1ower aikyl.

FERDINAND J. GAJEWSKI.

REFERENCES CITED The following references are of record in the 0 file of this patent:

UNITED STATES PATENTS Number Name Date 1,947,951 Neelmeier et a1 Feb. 20, 1934 2,191,738 Balle Feb. 2'7, 1940 1 2,433,542 Binkler et a1 Dec. 30, 194"! 

